[AMDGPU] Fix number of reserved SGPRs on CI to reflect flat scratch use

rampitec · rampitec · commit 73b54f413430 · 2016-12-08T20:07:23.000Z
Differential Revision: https://reviews.llvm.org/D27225 llvm-svn: 289095
diff --git a/llvm/lib/Target/AMDGPU/SIRegisterInfo.cpp b/llvm/lib/Target/AMDGPU/SIRegisterInfo.cpp
@@ -1181,6 +1181,8 @@ unsigned SIRegisterInfo::getNumAddressableSGPRs(const SISubtarget &ST) const {
 unsigned SIRegisterInfo::getNumReservedSGPRs(const SISubtarget &ST) const {
   if (ST.getGeneration() >= AMDGPUSubtarget::VOLCANIC_ISLANDS)
     return 6; // VCC, FLAT_SCRATCH, XNACK.
+  if (ST.getGeneration() >= AMDGPUSubtarget::SEA_ISLANDS)
+    return 4; // VCC, FLAT_SCRATCH.
   return 2; // VCC.
 }
 

Original file line number	Diff line number	Diff line change
`@@ -1181,6 +1181,8 @@ unsigned SIRegisterInfo::getNumAddressableSGPRs(const SISubtarget &ST) const {`
`1181`	`1181`	`unsigned SIRegisterInfo::getNumReservedSGPRs(const SISubtarget &ST) const {`
`1182`	`1182`	`if (ST.getGeneration() >= AMDGPUSubtarget::VOLCANIC_ISLANDS)`
`1183`	`1183`	`return 6; // VCC, FLAT_SCRATCH, XNACK.`
	`1184`	`+ if (ST.getGeneration() >= AMDGPUSubtarget::SEA_ISLANDS)`
	`1185`	`+ return 4; // VCC, FLAT_SCRATCH.`
`1184`	`1186`	`return 2; // VCC.`
`1185`	`1187`	`}`
`1186`	`1188`